Hinged cover container



Feb. 13, 1945. 4 A I LER- 2,369,392

HINGED COVER CONTAINER Filed July 21, 1942 5 Sheets-Sheet 1 INVENTOR. 1| 1 V 5471mm H. flag/er BY nrrolg/vsr Feb. 13, 1945. w. A. RINGLER HINGED CQVER CONTAINER Filed July 21, 1942 3 Sheets-Sheet 2 a l M4 .f m

flTTORNEV Patented Feb. 13, 1945- UNITED STATES PATENT OFF! csf HINGED COVER con'ramna William A. Ringler, Wayne, Pa., asslgnor to National' Folding Box Company, New Conn., a corporation of New Jersey Haven,

Application my 21, 1942, Serial No. 451,716

9 Claims.

, This invention relates ,to hinged cover container, and more particularly to a container formed from paperboard material comprising a box part having a cover part hinged thereto adapted to telescope over the open end of the box par-t. 1 v p The hinged cover container constructed in ac- -cordance,with this invention may be formed from a single blank of paperboard material of suitable strength and texture. Since only one side of the blank is presented as the outside face of the container, the paperboard forming the blank may be finished and imprinted on oneside thereof only.- The blanks may be cut and scored 2 from large sheets or rolls of paperboard material on an automatic cutting and scoring machine. The box forming part of the blank comprises front, rear and side wallupanels which are connected together to provide atubular body, The

box part is provided with a bottom end closure ofcollapsing sections which are hingedly connected to the ends of the top wall panel and side wall forming sections of the cover part and to the upper ends ot the side wall panels of the box part. The collapsing sections are so formed and constructed that upon closing movement of the top wall panel oi the cover part, the front flange section is automatically drawn into a position substantially at right angles to the top wall panel tion, one of the triangularsegments is hinged to the adjacent end of the topwall panel and 'is designed to fold inwardly to overlie the inside face of the top wall panel and another triangular segment is hinged to the adjacent edge of the side wallsection of the cover part and is designed to fold inwardly to lie adjacent its associated tri angular segment. -In the first form of the invention above referred to, a third triangular segment is hinged to the upper end of the adjacent side wall,panel of the box part and is designed to fold V inwardly over the upper end of the box part. When each collapsing'section is fully collapsed,

an inturned triangular tab of multl-ply thickness 9 is presented. .Complete collapse of'these sections occurs when the top wall panel of the cover part has been swung into fully closed position. 001- lapsing movement of the sections operates to -swirm the front flange section of the cover part snugly over the outside face of the front wall panel of the box part and also operates to swing the side wall sections of the cover part snugly over the outside face of the adjacent side wall panels of the box part.

01' the cover part and the side wall sections are automatically drawn into a positionsubstantiallyat right angles tothe top wall panel and trout flange'section oi the cover part. r

section is traversed by, a pair of diagonally extending fold lines which meet substantially, at a 1- right angle so as to divide each collapsing section into three triangular shav d segments of sub- -stantislly similar form and size. In another form oi the invention. each collapsing section-is traversed by a single diagonally extending told "line which divides the collapsing section into two triangular shaped segments of'substantlally simi- V In oneform oi the invention. each collapsing f An'abutment flap is hingedly connected to the front wall panel of the box part and a flixed abutment flap'is secured to the inside face of the front flange section of the cover part. These abut,- ment flaps cooperate to normally retain the cover part in closed position and are operative to resist opening movement thereof. i

The blank is so formed and constructed as to permit assembly of the box part into collapsed shellform on an automatic gluing andfolding machine at a high production rate. The .col-

lapsed assembled shells are substantially rectangular in outline and when stackedtogether may "be shipped and stored in a minimum cubical space. The merchandise manufacturer can quickly close the bottom forming flap and tabsof the-box part and insert themerchandis'e plus.

-By merely swinging the to'p'wall panel of the i cover part into closed position, the front flange section and side wall sectlonsot the cover part -.willautomatically assume a snug position over the respective iront wall panel and side. wall panels of. the box part. When the top wall panel has been swung to closed position, the abutment I flaps will automatically snap .into abutment so as to retain the cover part in normal closed position and reslst-opming movement.thereof.

This improved hinged cover-container is adapted for high speed economical production and when fully assembled is attractive and nest.

is: form and-sine. in both iormsi'oi the lnvenin appearance, strong and sturdy in construcrial by means of a few high speed assembly "assembled on high speed folding and gluing operations. I I Another object of this invention is to provide a hinged cover container formed from paperboard material having a cover part so formed and constructed as to automatically fold and assemble itself when the top wall panel of the cover part is swung into closed position.

Another object of this invention is to. provide an improved paperboard blank from which a hinged cover container may be automatically machines.

A still further object of this invention is to provide a hinged cover container formed from paperboard material which is neat and attractive in appearance, strong and sturdy in construction and which is especially adapted for the packaging of various articles of merchandise which have heretofore been packaged in inged cover containers formed from metal or similar rigid material.

Other objects of this invention will become apparent as the disclosure proceeds.

Although the novel features which are believed to be characteristic of this invention will be particularlymointed out in the claims appended hereto, the invention itself, as to its objects and advantages and the manner in which it may be carried out, may be better understood by referring to the following description taken in connection with the accompanying drawings forming a part thereof, in which:

' Fig. 1 is a plan view of a prepared blank from I which the improved hinged cover container may be formed;

Fig. 2 is a plan view of the major portion of the blank and showing the abutment flap associated with the cover part folded into adhesive engagement with the front flange sectionv adjacent side wall panel and the rear wall panel of the blank;

Fig. 4 is a perspective view of the blank after the'second side wall panel has been folded over the rear wall panel and adhesively secured to the securing flapso as to present a collapsed tubular.sheli.ready for shipment and storage;

Fig. 5 is a perspective view of the collapsed shell shown in Fig. 4 after expansion into tubular form;

- Fig. dis a perspective view of the expanded shell having thebottom wall flap folded. into closed position to provide aclosed end wall and presenting a fully assembled box part;

Fig. 7 is a perspective viewv of the container showing the cover part being swung into closed 1 position, during which operation the cover part becomes self-assembling;

Fig. 8 is a. perspective viewer-the fulir'sss'embled container with the cover'part in closed i o Fig, 9 is a vertical cross-sectional view through the assembled container having a merchandise 5 showing the cover part in partially Fig. 11 is a perspective view of the upper portion of the container having a cover part provided with collapsing sections of somewhat modified construction;

, Fig. 12 is'a perspective view of the upper por- Fig. 15 is a vertical cross-sectional view of the upper portion of the container as it appears when viewed along line l5--|5 of Fig. 14.

parts throughout the several views of the drawings and the specification;

The container forming blank as shown in Fig. 1 may be formed from paperboard material-which need be imprinted on one side thereof only and which may be cut and scored at a high production rate on an automatic cutting and scoring machine. part a and a cover forming part b hinged to the box forming part along a transversely extending score line ll.

The box forming part comprises a front wall panel I hingedly connected along one side thereof by a longitudinally extending score line i to a side wall panel 3. The other side edge of side wall panel 3 is hingediy connected along a longitudinally extending score line 6' to the adjacent side;,edge of a rear wall panel 2. The opposite side edge of the rear wall panel I is hingedly connected along longitudinally extending score 'line 6" to a side wall panel I. A securing flap 5 at the opposite side of the blank is hingedly connected alonga longitudinally extending score line 8" to the front wall panel l. A bottom forming flap 1 is hingedly connected along a transversely extending score line 8 to the lower end of front wall panel I. A bottom tab 8 is hingedly connected to the lower v.end of each of the side wall panels 3 and d by a transversely extending score line 8". The bottom forming flap I carries a tuck-in flap If hinged thereto along a transversely extending score line -8-'and isdesigned to be inserted into the box part to lie against the inside face of the rear adjacent free edges of the inturned tabs Ill. 7 An abutment flap 30 is hinge'dly connected to the upper end of the front wall panel I by a transversely extending score line 3|. The abutmentflap 30' maybe provided with an abutment edge-32 extending substantially parallel with score line 3l and may also be provided with mitered ends, as illustrated in Fig.1.

'The cover forming part b of the blank com- 10 prisesa top wallpanel l0 hingedly connected to the upper end" of'fl e rear. wall panel 2 along the transversely extending score line 'I l. A front; flange sectiomll is hingedly connected to the top wailpanel I I along a transverse score line l3-;extending substantially Parallel with score raised posiv Similarireference characters refer to similar The blank comprises a box forming wall panel 2 and be frictionally gripped by the 2,369,392 line H. An abutment flap 24 is hingedly con-" nected to the front flange section 12 along a transverse score line 25 which may extend substantially parallel with score line I3; A side wall forming section I4 is hingedly connected to each I end of the front flange section I2 along a lon- 'gitudinally extending score line l5.

In the form of the invention illustrated in Figa 1 to 10 inclusive, collapsing section It ishingedly connected to each end of the top wall panel 10 along a longitudinally extending score line H. Each collapsing section I 5 is alsohingedly connected to the upper end of the adjacent side wall panel of the box part by a transversely extending score line i8 which is substantially in alignment with the transverse sco're line I I. The upper end of the collapsing section I6 is also hingedly connected to the adjacent side wall section l4 along a transversely extending score line IIS, score line l9 being substantially in alignment with score line l3. The longitudinally extending score line 6' of the box part may be substantially in alignment with the adjacent longitudinally extending score lines I! and ii of the cover part and the longitudinally extending .score line 6" of the box part may be substantially in alignment with the other adjacent score lines l1 and I5 of the cover part.

Each collapsing section I6 is traversed by a "collapsing score line 20 which extends from the adjacent end of the score line I3 diagonally across the collapsing section. Each collapsing section It is provided .with a second collapsing lyrectangular in outline and a large number of I direction of the arrow 4| as shown in Fig. 3, and

during thismovement a strip of adhesive o is applied to the outside face of the securing flap 5, following which the front wall panel I is folded about the longitudinally extending score lineG so as to overlie the inside face of the atflacent side wall panel 3 and a part of rear wall panel 2. During continued movement of the blank in the direction of the arrow, as shown in Fig. 3, the other side wall panel 4 is folded about the longitudinally extending score line 6" so as to overlie the glued face of the securing flap 5 and is then pressed into flr'm adhesive engagement therewith. During the folding of the side wall panel 4, the adjacent collapsing section 16 folds along longitudinally extending score line H so as to overlie the, inside face of the top wall panel III, and the adjacent side wall section also folds about longitudinally extending-score ,line so asto overliethe inside face of the front flange section l2, as indicated in Fig. 4. This assembled shell as shown in Fig. 4 is substantialthese shells may be stacked one upon. the other for shipment to and storage by the merchandise lar, -,form as shown i Fig. 5. The bottom tabs score line 2| which extends from the adjacent end ,of the score line H diagonally across the collapsing section and'meets the end of the com-,

panion score line 20 at substantially a right angle.

The diagonally extendingscore lines 20 and 2| traversing each collapsing section l6 divide the collapsing section into threetriangular shaped segments w, a: and y, as illustrated more particularly in Fig.4. Thesegments w, :c and 1! are all substantially the same shape and size. The diagonally extending score lines 20 and 2| permit collapse folding of the triangular segments,

10, a: and yrwhen the top wall panel I'll is swung into closed position. The collapse folding of segments w o: and y operate to automatically, fold the side wall sections-l4 of the cover part into end of the top wall panel ID of the cover part,

that the triangular segment a: ishingedly connected by transversely extending score line I! to.

the lower. edge of adjacent side wall section ll of the cover part, and the triangular segment 11 is hingedly connected along transversely extend- 7 ing score line l8 tothe upfier end of the adjacentside wall panel ofthe box part.

- The blank as shown in Fig. 1 may be assembled into collapsed shell form-on an automatic strip gluing and'folding machine. In performing this assembly operation the blank preferably moves through the machine in the direction of the arrow 40 as shown in Figs. 1 and 2, and during this movement adhesive 7 isappliedto the inside face of the abutment flap 24 associated with the cover part, following. which the-abutment flap 24 is folded about score line 25 into adhesive engagement with the inside face of the front flange section l2. The blank then moves in the,

the inside face 'of the rear wall pa'n el12. The tuck-in flap is then frictionally gripped by the adjacent free edges of the inturned tabs 9. This bottom assembly operation may be quickly performed by hand if desired, in wliich event the merchandise manufacturer requires no end seal ing machine. The box'part a of the container,

thus fully assembled, appears as shown in Fig, 6. A merchandise plug P may then be telescoped through the open end of the box part to assume I its final position within the box part.

An important feature of this invention resides inthe construction of the cover part whereby the cover part will become automatically assembled merely by swinging the top wall panel ID of the cover part into closed position. As shown-more particularly in'Figs. 6 and 7, closing movement of the top wall panel In causes the sections I6 right angles'to' the top wall panel lli. Substantially simultaneously, the sidewall sections l4 of the cover part are swung into position substantially at right angles to the front flange section 12. As the sections it collapse, each of the triangular segments w swing into a position to overlie the inside face ofthe top wall panel l0. Substantially simultaneously, each of the triangular segments 1 will swing inwardly from their associated side wall panels of the box part, and

"each of the triangular segments a: will sandwich between their associated, triangular segments- 10 and 1 When the cover part is in closed posi--.

tion each segment will present a three-ply inturned triangular tab with the triangular segment .1: superimposed over the triangular segment 11 and with the triangularseg ment 10 super- 1 imposed over the triangular segment a. When the cover part is in fully closed position, as shown in Fig. 9, the front flange section i2 will snugly overlie the front wall panel i of, the box part and the side wall sections l4 will snugly overlie the outside face of the side wall panels of the box part. .When thecover part is in closed position as shown in Fig. 9, the lower edge 32 of the hinging abutment flap 30' associated with the front wall panel of the box part will also abut the abutment edge 26 associated with the fixed abutment flap 24 of the cover part.

The collapsing sections it as thus formed will collapse smoothly and automatically and operate to swing the front flange section 12 of the cover part into snug overlapping relationship over the outside face of the front wall panel i of the box part and to swing the side wall sections 14 of the cover part into snug overlapping relationship over the adjacent side wall panels of the box part. The cover part may be read-. ily swung into open position by applying an upward lifting force to the lower edge of the front flange section l2 of the cover part. When the cover part is swung 'into open position itwill appear as illustrated in Fig. 5, with the top wall panel Ill and the front flange section l2 substantially in alignment with the rear wall panel 2, of the'box part and with the side wall sections it and the collapsing sections it substantially in alignment with the adjacent sidewall panels of the box part. When the cover part is thus fully open, free and unobstructed access to the contents is assured.

The container as illustrated inFigs. 11 to 15,

may be formed similar to that illustrated in Figs. 1 to inclusive and similar partsthereof need not be further described. The cover part b, is provided with collapsing sections l6 comprising a triangular segment w hinged to each end of the top wall panel ill and a triangular segment a: hinged to the lower edge of each of the side wall ,sections it. The triangular segments a: andw are hingedly connected along a diagonally extending score line'2ll so as to make the segments a: and w of substantially the same form and size. It will be noted that the triangular segment 1 employed in the container illustrated in Figs. 1

' to 10 inclusive is eliminated from the container illustrated in Figs. 11 to inclusive. J

As illustrated in Figs.12 and 13, closing movement of the top wall panel i0 causes thesections l6 to automatically collapse and as they collapse the sections i6 automatically swing the front flange section l2 into position substantially at right'angles to the top wall panel ill. Substantially simultaneously the side wall sections it of the cover part are swung into position substantially at right angles to the front flange section I2. Each of the triangular segments 10 swings into position to overlie the inside face of the top wall panel Ill. Substantially simultaneously each of the triangular segments a: will swing inwardly the box part will also abut the abutment edge 28 associated with the fixed abutment flap 24 of the cover part.

The fully assembled coveras shown in Fig. 14 may be maintained in fully assembled position -by applying an adhesive strip 50 over the top wall panel l-il and side wall sections ll of the cover part. Such adhesive strip may comprise tainer.

' may be swung open as illustrated in Fig. 13 and is encountered.v The hinged abutment flap 30 to normalopeningof the cover part so that the I a revenue stamp oradhesive tape which may extend over the side wall panels of the box part as illustrated in Fig. 14, to provide a sealed con- Upon breakage of the sealing strip ill along the line of perforations 5|, the cover part the adhesive strip remaining attached to the top wall panel l0 and side wall-sections will then serve to maintain the cover part in fully assembled position. If desired, a similar adhesive strip may be applied to thecover part b of the container illustrated in Fig- 8.

In both forms of the inventionv the fixed abutment flap 24 and the hinging abutment flap 30 are so shaped and arranged as to cooperate to maintain the cover part in normally closed position and resist opening movement of the cover part. When'upward lifting force is applied to the lower edge of the front flange section l2 of the closed cover part, stresses are imposed on the front wall panel I' and the rear wall panel 2 of the box part, causing inward bowing oft-he upper ends thereof, as-shown in Fig.110. The resistance to opening continues until the hinged abutment flap 39, as shown in Fig. 10, extends at an obtuse angle to the front wall panel I, when 1 further resistance to opening is removed. Little or no resistance to the closing 'of the.cover part and flxed abutment flap, are so shaped and proportioned as to offer the desired resistance cover part is retained in closed position and will not open during normal handling of the container.

This improved hinged cover container can be assembled into collapsed shell form at the box factory at high production speeds. assembled collapsed shell is substantially rectangular in form, a large number of the collapsed shells may be packed together in a 'minimum cubical space.

. may complete the final assembly of the box part by expanding the shell, turning the bottom tabs inwardly and inserting the tuck-1n flap. The merchandise plug maythen be inserted into the box part either-by hand or by means of anautomatic filling machine. The cover part is so constructed and formed that it will assemble itself by simply swinging the top wall panel ill of the coverpart into closed position. When the top wall panel of the cover part is in. closedposition.

' thefront flange sectionthereofwill be neatly so as to underlie its associated triangular segment w. When the coverpart is in closed position each segment presents a'two-plyv intumed triangular tab with the triangular segments a: and w in overlying relationship. When the cover part is infully closed position, as shown inFig. 9, the front" flange section I! will snugly overlie the front.wall panel I of the box part and the side wall sections it will snugly overlie the outside face of the side wall panel ofthe box part When the cover part is in closed, position as shown in Fig. 15, the lower edge 32 of the hinged abutment .flap-IO associated with the mm; u panel of arranged over the front wall panel of the box part with the cooperating abutment flaps clicked into abutment, and the side wall sections of the'cover part will also neatly overlie theadiace'nt side wall panels of the box part. Thecontainer as thus constructed is neatand attra'ctive in appearance,

strong and durable in u'se'fand'is adapted for the packaging of numerous articles of merchandise.

While certain novel features of the invention have been disclosed and are pointed out in the annexed claims, it will beunderstood that various omissions, substitutions and changes may be made by those skilled in the art without departing from the spirit of the invention.

Since the.

The merchandise manufacturer I claim: 1. An, improved hinged cover container formed from paperboard material comprising, a box part having connected and enclosing front, rear and 7 to the top wall panel and adapted'to telescope over the front wall panel of the box part,'a pair of side wall sections hingedly connected to the ends of said front flange section and adapted to telescope, over the side wall panels of the box part, collapsing sections hinged -tothe adjacent ends of said top wall panel and side wall sections of the cover part, said collapsing sections being each traversed by a diagonally extending fold' line dividing each collapsing sectioninto hinged segments, at least one of said segments having afree edge, one of said segments being hingedly connected to the adjacent end of the adjacent side wall section and: another segment being hingedly connected to the adjacent end of the top wall panel of the cover. part whereby said collapsing sections are operative to automatically fold inwardly over the inside face of said top wall panel and swing the front flange section-and the side wall sections of the cover part snugly over the respective front wall panel and side wall panels of the box part when the top wall panel is swung into' closed position, and means to retain the cover part in closed position and resist opening movement thereof.

- 2. An improved hinged cover containerformed from paperboard material comprising, a box part having connected and enclosing front, rear and sidewall panels and an open upper end, anda self-assembling cover part for said open upper end; said cover part. having a top wall'panel hingedly connected to the rear wall panel of the box part, a front flange section hingedly connected to the top wall panel and adapted to telescope over the front wall panel of the box part, a side wall section hingedly connected to each end. of said front flange section and adapted to telescope over the adjacent side wall panel of the box part, a pair of collapsing, sections each traversed by a pair of diagonally extending fold lines dividing the section into hingedly connected triangular shaped segments'and wherein at least two of said segments have a free edge,'one of said segments being hingedly connected to the adjacent end of the adjacent side wall section, another segment being hingedly connected to the' upper end of the adjacent side wall panel of the box part, and another segment being hingedly w 5 side wall panels and an open upper end, said cover part having a top wall panel hingedly connected to the rear wall panel of the box part, a

' front flange section hingedly connected to the top wall panel and adapted to telescope over thefront wallpanel of the box part, a side wall section hingedly connected to each end of said front flange section and adapted to telescope over, the adjacent side wall panel of the box part, and

a pair of collapsing sections each defined by a pair of hingedly'connected triangular segments both having a free edge, oneof'said segments being hingedly connected to the adjacent end of the adjacent side wall section of the cover part and the other hingedly connected to the adjacent end of the top wall panel of the cover part where'- by the triangular segments of each collapsing section are operative to automaticall fold in warly over the inside face of said top wallpanel and swing the front flange section and the side wall sections of the cover part snugly over fthe respective front wall panel and side wall panels of the box part when the top wall panel isswung into closed position, and abutment means associated with the front flange section of the cover part and the front wall panel of the box part adapted to cooperate to normally retain the cover part in closed position and operative to resist opening movement thereof. a

4. An improved paperboard shell comprising, a

box part having connected front, rear and side part is erected, a side wall section hingedly connected to each end of said front flange section and adapted to "telescope over the adjacent side wall panel of the box part when the box part is erected, collapsing section's hinged to the adjacent ends of said top wall panel and side wall sections of the cover part, said collapsing sections being each traversed by a diagonally extending score line-dividing each collapsing section] into hinged segments at least one of which has a free edge, one of said segments being hingedly connected to the adjacent end of the top wall panel and another to the adjacent end of the side wall wardly over'the inside face of said top wall panel ciated with the front flange section of the cover part and thefront wall panel of the box part adapted to cooperate to normally retain the cover section of the cover part whereby said collapsing sections are operative to automatically fold inwardly over the inside face of said top wall panel and swing the front flange section and the side wall sections of the cover part snugly over the respective front wallpanel and side wall panels" of the erected box part when the top wall panel is swung into closed position, and abutment means associated with the front flange section of the cover part and the front wall panel of the box part adapted to cooperate to normally in closed position and operative to resist opening movement thereof.

3. An improved hingedlcover container formed from paperboard material comprising, a box part having connected and enclosing front, rear and retain the cover part in closed position and-operatlve to resist opening movement thereof when the container is assembled.

5. An improved paperboard shell comprising,

- a box part having connected front, rear and side wall panels and an open upper end forming a collapsible tubular box body, and a'seif-assembling cover part for said open upper end, said cover part having a top wall panel .hingedly 3 tion over the erected box part.

v "l. An improved paperboard blank adapted for assembly into a hinged cover container comprising a box-formingpart having front, rear and front wall panel of the box part when the box part is erected, a side wall section hingedly connected to each end of said front flange section and adapted to telescope over the adjacent side wall panel of the box part when the box part is erected, and a pair of collapsing sections each defined bythree hingedly connected triangular segments which are in turn hingedly connected to the adjacent end of the top wall panel and the adjacent end of the side wall section of the cover part and the adjacent end of the side wall panel of the boxpart, at least two of the triangular segments of each collapsing section having free ends, the triangular segments of each collapsing section being operative to automatically fold inwardly over the inside face of said top wall panel and swing the front flange section and the side wall sections of the cover part snugly over the respective front wall panel and sidewall panels of the erected box part when the top wall panel is swung into closed position, and abutment means associated with the front flange section of the cover part and the front wall panel of the box part adapted to cooperate to normally retain the cover part in closed-position and operative to resist opening'movement thereof when the container is assembled.

6. An improved paperboard shell comprising, a

; box part having connected front, rear and side wall panels, an open upper end providing a coltop wall panel and adapted to telescope over the I nected to each end of said top wall panel and the adjacent side wall section of the coverpart, each of said collapsing sections being traversed by a fold line which serves to divide each collapsing section into generally triangular shaped collapsoperate to retain the cover part in closed posi-' lapsible tubular box body, and a self-assembling cover part for said open upper end, said cover part including a top wall panel hingedly connected to the rear wall panel of the box part, a

tion when the blank has been assembled into contamer form.

8. An improved paperboard blank adapted for assembly into a hinged cover container comprising a box-forming part having front, rear and side wall panels hingedly connected in side-byside relationship, a, bottom forming panel hinged to the lower end of one of said first named panels, and a self-assembling cover-part having a top wall panel hinged to ,the upper end of the rear wall panel of the box part, a front flange section hinged to said top wall panel, a pair of side wall sections for the cover part each hingedly connected to the adjacent end of said front flange section, and'a collapsing section hingedly connected to each end of said top wall panel and the adjacent side wall section of the cover part and the adjacent side wall panel of the box part,

each of said collapsing sections being traversed by a pair of diagonally extending fold lines which meet at substantially a right angle and serve to divide each collapsing section into triangular front flange section hingedly connected to the top wall panel and adapted to telescope over the front wall-panel of the box part when the box 'part is erected, a side wall section hingedly connected'to each end of said front flange section and adapted to telescope over the adjacent side .wall' panel of the box part when the box part is erected, and a pair of collapsing sections connecting the adjacent endsof said top wall panel and side wall sections of the cover part, each of said collapsing sections being traversed by a diag.. onally extending fold line dividing the section ment means fixed to the inside face of said frontflange section, and abutment means secured to c into a pair of segments one of which is hingedly connected to the adjacent edge of a side wall 1 section and the other hingedly connected to the adjacent end of the top wall panel of the cover part, each "of the paired segments of each collapsing section having a, free. end, the segments 9 forming the collapsing sections being foldable' inwardly over the inside face of the top wall panel so as to present a multi-ply inturned tab which is automatically assembled when the top wall panel of the cover part is swung into closed posi side wall panels hingedly dbnnected in side-bysiderelationship, a bottom forming panel hinged to the lower end of one=of said first namedpanels,

' and itself-assembling cover partyhaving a top -wall=panei hinged to the upper end of the rear section, and a collapsing section hingedly conshaped segments, at least two of the segments of each collapsing section having a free edge, abutthe upper edge of the front wall panel of, the box part; said abutment means being adapted to cooperate to retain the cover part in closed position when the blank has been assembled into container form. l

9. An improved paperboard blank adapted for assembly into a hinged cover container comprising a. box-forming part having front, rear and.

side wall panels hingedly connected in side-by-, side relationship, a bottom forming panel hinged to the lower end of one of said first named panels, and a self-assembling cover part having a top wall. panel hinged to the upperend of the rear wall panel of the box part, a front flange section hinged to said top wall panel, a pair of side wall sections for the cover part each hingedly connected to the adjacent end of said front flange section, and a collapsingsection hingedly connected to each end of said top wall panel and the adjacent side wall section of the cover part,

each of said collapsing sections being traversed by a diagonally extending fold line which serve to divide each collapsing section into two substantially triangular shaped segments, both of the segments of each collapsing section, having a free edge, abutment means fixed to the inside face of said front flange section. and abutment means secured to the upper edge of the front wall panel of the box part, said abutment meansbeing adapted to cooperate to retain the cover part in closed position when the blank has been assembled into container form. I I 

